After years of trial and error it looks like we have a nice potting soil mix at Early Girl! The recipe is... Ingredients: 2 5 gallon buckets peat moss, screened; 1 5 gallon bucket compost, screened; 1 5 gallon bucket perlite; 2/3 bucket worm castings/1/3 bucket inoculated biochar; 1/2 cup powdered lime; 1 cup basic organic fertilizer and a 1/3 bucket of blue stone dust. Method: Mix screened peat with 1/2 cup lime to mellow is acidic nature. Add screened compost and perlite(mix carefully, perhaps with a mask due to perlites dust factor). Add worm castings, biochar, blue stone dust, nutrients. Mix well. Serve. I mix everything in a Rubbermaid Farm Cart that my Dad crafted a screen in a wooden frame for. I've had the screen for years and I think its 1/4" metal mesh. To procure these ingredients...our friends at Green Island Distributors, Riverhead for peat moss and perlite. Rock Dust Local for inoculated biochar(mail order). Castings Happen for worm castings, awesome Long Island Company. Stevens Stone and Brick for blue stone dust, again awesome Long Island Company. A few thoughts...Rock Dust is an important ingredient for the soil. It boosts mineral content and the soils ability to harness paramagnetic energy for mineral distribution. On Long Island the closest resource is Blue Stone from Upstate NY. It's my first year using it. It's not as finely ground as the gorgeous basalt from Rock Dust Local in New England but it's cheaper, more locally resourced and seems to be adding a nice kick to the soil mix. I'll be putting it in the raised beds and in compost mixtures etc. Stay tuned to find out how it lends it special qualities in those arenas. To find out more about various rock dusts and their amazing qualities go to the Rock Dust Local website. They are experts in the field and will blow your mind with their high quality products and knowledge. They also have products available in bulk for delivery to save some $$$. I'm junior varsity with this information but I can tell you from my limited experience that it really works!!